Results 141 to 150 of about 54,450 (311)

Rapid Screening of Secondary Plant Metabolites using Two‐Dimensional Tandem Mass Spectrometry

open access: yesAnalysis &Sensing, EarlyView.
2D MS/MS data domain recorded for an extract of milk thistle, ionized in the negative mode using desorption electrospray ionization (DESI). The data, which is recorded in a few seconds, displays all products of all ionized molecules in the biological extract.
Thomas C. Sams   +4 more
wiley   +1 more source

Effects of spatially heterogeneous lakeside development on nearshore biotic communities in a large, deep, oligotrophic lake

open access: yesLimnology and Oceanography, Volume 67, Issue 12, Page 2649-2664, December 2022., 2022
Abstract Sewage released from lakeside development can reshape ecological communities. Nearshore periphyton can rapidly assimilate sewage‐associated nutrients, leading to increases of filamentous algal abundance, thus altering both food abundance and quality for grazers.
Michael F. Meyer   +11 more
wiley   +1 more source

Density and Crystallinity Correlations: Enhancing Moisture Barrier Properties in Poly(l‐Lactic Acid), Poly(d‐Lactic Acid), and Stereocomplex‐Poly(l,d‐Lactic Acid) Films

open access: yesJournal of Applied Polymer Science, EarlyView.
ABSTRACT This study examines the relationship among the density, crystallinity, and moisture barrier properties of poly(l‐lactic acid) (PLLA), poly(d‐lactic acid) films (PDLA), and their PLLA/PDLA blends (85/15, 70/30, 50/50, and 30/70). Amorphous film samples display densities between 1,230 ± 6 and 1,243 ± 2 kg m−3, while semi‐crystalline samples show
James F. Macnamara Jr.   +3 more
wiley   +1 more source

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning

open access: yesThe Anatomical Record, EarlyView.
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit   +6 more
wiley   +1 more source

Smectic C Self‐Assembly in Mesogen‐Free Liquid Crystalline Chiral Polyethers with Sulfonylated Methyl‐Branched Side Chains

open access: yesMacromolecular Rapid Communications, Volume 44, Issue 1, January 2023., 2023
Smectic C self‐assembly is achieved for the first time in mesogen‐free liquid crystalline chiral polymers with sulfonylated methyl‐branched alkyl side chains, as revealed by X‐ray diffraction and polarized light microscopy. These polymers exhibit high dielectric constants between 7.9 and 11.7.
Caleb A. Bohannon   +6 more
wiley   +1 more source

Scintillation efficiency of Tb:YTaO4 single crystals

open access: yesApplied Physics Express
Environmentally friendly scintillators are demanded to substitute CdWO _4 single crystal for X- ray imaging. Tb ^3+ :YTaO _4 single crystals are a promising candidate with a high stopping power, green emission matching to photodiodes, and a small ...
Encarnación G. Víllora   +3 more
doaj   +1 more source

Mass spectrometry in ocular drug research

open access: yesMass Spectrometry Reviews, EarlyView., 2023
Abstract Mass spectrometry (MS) has been proven as an excellent tool in ocular drug research allowing analyzes from small samples and low concentrations. This review begins with a short introduction to eye physiology and ocular pharmacokinetics and the relevance of advancing ophthalmic treatments.
Eva M. del Amo   +6 more
wiley   +1 more source

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